Viessmann Vitosol 100-FM Technical Manual page 44

DHW cylinders
Heat-up time
The specified heat-up times will be achieved subject to the maximum
continuous output of the DHW cylinder being made available at the
relevant heating water flow temperature and when DHW is heated
from 10 to 60 °C.
Heat-up time (min.) at heating water flow temperature
90 °C
80 °C
70 °C
Pressure drop on the heating water side, upper indirect coil
1000 100.0
800 80.0
600 60.0
500 50.0
400 40.0
300 30.0
200 20.0
100 10.0
80 8.0
60 6.0
50 5.0
40 4.0
30 3.0
20 2.0
10 1.0
8 0.8
6 0.6
5 0.5
4 0.4
3 0.3
Heating water flow rate
in l/h
7
VIESMANN
44
(cont.)
Pressure drop on the DHW side
100 10.0
80 8.0
60 6.0
50 5.0
40 4.0
30 3.0
20 2.0
10 1.0
8 0.8
6 0.6
5 0.5
4 0.4
3 0.3
DHW flow rate
in l/h
16
22
30
VITOSOL